56 EDWARD T. BROWNE. 



umbrella iu addition to the rhopaliar lobes. Each rhopaliar lobe is divided by a deep 

 deft. Maas, on the other hand, figures the rhopaliar lobes with an undivided margin. 

 I have carefully examined the tattered marginal lobes of my specimens, and can 

 occasionally see a small isolated lobe in the position of Vanhoffen's tentacular lobes. 

 From their general appearance I have come to the conclusion that they are only 

 detached portions of the torn rhopaliar lobes. Although none of my specimens have 

 one absolutely perfect lobe, still, in building up a picture from the many imperfect 

 lobes I cannot trace or find any definite cleft in these rhopaliar lobes. 



Distribution. Antarctic. 'Gauss' Winter Station, about lat. 66 S., long. 89 E. ; 

 north of Kaiser Wilhelm II. Land (Vanhofteu). Wandel Island ; lat. 65 S., long. 

 66 W. (Paris) (' Francais ' Expedition). (Maas, 1908.) McMurdo Sound; lat. 

 78 49' S., long. 166 30' E. ('Discovery' Expedition). Cape Adare ; lat. 70 18' S., 

 long. 170 9' E. (' Southern Cross ' Expedition). 



DlPLULMARIS (?) GIGANTEA. 



In Mr. Borchgrevink's " First on the Antarctic Continent " there is an allusion to 

 the capture of a very large Scyphomedusa. " One large jellyfish was caught near the 

 peninsula, with arms, or extremities, about 12 yards long; its weight was 90 Ibs." 

 There are also two illustrations from photographs of this Medusa ; one showing it at 

 the surface of the sea, and the other after it was landed from the boat. This specimen 

 was apparently caught on 10th October, 1899, and there is a record of another 

 specimen for December 27th. " Mr. Fouger secured a magnificent specimen of a 

 jellyfish." In the ' Southern Cross ' collection there is one specimen of a large 

 Scyphomedusa labelled "Cape Adare, January, 1900; 7 fathoms." It was originally 

 in formalin, but was transferred to alcohol at the British Museum. 



I saw this specimen soon after its arrival at the Museum. It was then in a broken 

 condition and thickly coated with a deposit of iron rust, which had uniformly stained 

 the surface of the Medusa a dark reddish-brown colour. It seems to me that this 

 specimen must have passed through some other chemical besides formalin, because the 

 jelly of the umbrella has become very much consolidated and rather hard and brittle. 



When the specimen was laid out flat in a dish, the umbrella measured about 

 18 inches (500 mm.) in diameter. (The size of the " 90-lb. Medusa" is not stated, 

 but from the photographs I roughly estimate the umbrella to have been about 2^ feet 

 in width and about 1 foot in height.) There is a central mouth and four oral arms, 

 which are not perfect. The longest arm measures 7 feet (over 2 metres), and another 

 arm 5 feet. They must have been very much longer when the animal was alive. 

 They have every appearance of great strength and length, so that I do not think that 

 the length of 12 yards for the oral arms of the "90-lb. Medusa" was a very great 

 exaggeration. The arms are evidently of the Desmonema type, V-shaped transversely, 

 broad at the base, and tapering towards the distal end. The delicate membranous 

 folds, which form the sides of the arm, have disappeared, and only the keel and thick 



